adjust the time by pressing buttons

[allfallsdow]

Hello,first thanks for Rtc. library.Recently I'm making a program.
Q;Which funcion could I call to adjust the time second by second,or minute by minute etc?

[Makuna]

What do you mean by "adjust the time second by second"?
Do you mean set the time? Almost every example demonstrates setting the time.

RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__); // instantiate a RtcDateTime with the new Date and Time you want (many ways)
Rtc.SetDateTime(compiled); // apply that RtcDateTime instance to the RTC module

If you mean, modify the existing time, then

RtcDateTime modify = Rtc.GetDateTime(); // get current date and time
modify += 60; // add 60 seconds
Rtc.SetDateTime(modify); // apply that modified instance to the RTC module